How to safely delete multiple pointers

Question

I have got some code which uses a lot of pointers pointing to the same address. Given a equivalent simple example:

int *p =  new int(1);
int *q = p;
int *r =         


        

Answer 1

The "modern" answer is to use a smart pointer and don't do any manual deletes.

boost::shared_ptr p(new int(1));
boost::shared_ptr q = p;
boost::shared_ptr r = q;

End of story!